D331212121133131333131323223313232233132313223313231232313231313221   >>    D33121212113313133313132322331323223313231322331323123231323131322   <<    D331212121133131333131323223313232233132313223313231232313231313223   >>      D331212121133131333131323223313232233132313223313231232313231313222   >>